Desciption: 1.) This is NOT a speed guide.
2.) This is the DEMO version of the game.
3.) There are many ways to climb the Agency Tower. Keep in mind this is just one method. 4 stars is not required to reach the top, but if you retrace the steps show here you will run in to trouble with anything lower than 4.
Deonaris and Ry Fryy climb to the top of the Agency Tower, then jump to the water. These are Achievements that will appear in the retail version of Crackdown. Sorry for the poor quality, I'm techno-retarded.